I had issues with getting some of these to work as well, but I finally got them all working. You might be able to find some good examples in the Custom Quests section of the forums. Here are some examples of quests I posted there for class specific rewards:
http://www.eqemulator.net/forums/showthread.php?t=24921
http://www.eqemulator.net/forums/showthread.php?t=24321